[PR45354] sel-sched: don't make EDGE_CROSSING edges fallthrough

[H.J. Lu]

On Tue, Nov 30, 2010 at 5:31 AM, Alexander Monakov <amonakov@ispras.ru> wrote:
> Hi,
>
> We should not delete jumps if they cross hot/cold partition boundaries.  The
> patch adds the corresponding check in bb_has_removable_jump_to_p (which is
> renamed from jump_leads_only_to_bb_p, making the name a bit closer to the
> purpose).
>
> Bootstrapped and regtested on ia64-linux, x86_64-linux.  OK for trunk?
>
> 2010-11-30  Alexander Monakov  <amonakov@ispras.ru>
>
>        PR rtl-optimization/45354
>        * sel-sched-ir.c (jump_leads_only_to_bb_p): Rename to ...
>        (bb_has_removable_jump_to_p): This.  Update all callers. Make static.
>        Allow BBs ending with a conditional jump.  Forbid EDGE_CROSSING jumps.
>        * sel-sched-ir.h (jump_leads_only_to_bb_p): Delete prototype.
>

This caused:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46875


-- 
H.J.